You are completely missing the point. Raising the minimum wage does NOT reduce the number of poor households, because most minimum wage earners are NOT poor.
I completely see your point. You've skewed the statistics (actually repeated an argument made by the conservative Heritage foundation and the collection of political bloggers) to make it look like minimum wage doesn't affect the poor. The problem with your slight of hand is that its obvious that your argument falls flat when you realize that total population of minimum wage earners is not the same as the total population of poor households.
To put it another way... You are arguing that the plurality of minimum wage earners aren't poor, instead of the more applicable argument that the overwhelming majority of poor employed households are minimum wage earners. Your argument has the convenient side effect of ignoring the current problem with encouraging people off of welfare by getting a job that pays less than what they get by simply staying home.